diff --git a/setup.py b/setup.py
index 22e7823..1cce326 100755
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setuptools.setup(
     name="sdm_modbus",
-    version="0.3.0",
+    version="0.4.0",
     description="Eastron SDM Modbus parser library",
     long_description=long_description,
     long_description_content_type="text/markdown",